I've done a bit more searching, and answered one of my questions, and thought of a couple more.
It looks like I can reset factory defaults using the brain stem connection.
So, new questions..
1) When I'm connected to the DSATX via a COM port, should I see some feedback in the HyperTerm window?
2) If I leave the DSATX connected to a PC via the COM port, and the computer is starting up, is it normal for the computer to reset?
3) Is it possible to connect to the DSATX and set the advanced settings when ACC is not present?